With the development of the earth observing satellites science and technologies, environment observing satellites can be considered as a network which can satisfy various observing requests simultaneously. The data collection planning system for the satellites network investigates how to utilize the satellites network cooperatively and optimally, which provides decision support tools to satisfy the various and multilevel observing requests. The data collection planning system, as a bridge linking users and satellite managers, is designed to try to make use of the whole satellites network sufficiently. Currently, most application systems for observing satellites deal with the simple task which only involves a single satellite or a single series satellite. The compound observing task which involves various kinds of satellites is not considered, which results that the limited observing satellites can not be employed optimally.

With the development of the earth observing satellites science and technologies, the data customization and collection
planning system as a bridge linking users and satellite managers, is designed to try to make use of the whole satellites
network sufficiently. Its research fixes attention on how to utilize the satellites network cooperatively and optimally,
discusses whole correlation of various activities in process from submission user's requirements to acquisition remote
sensing products. The paper looks at demand from remote sensing application sector including regional monitoring as
well as reducing and preventing disasters etc., and put forward a sort of system structure on environment remote sensing
satellite architecture and collection planning system, aiming at remote sensing satellite managed by different domestic
deparments, to improve the macro utilization benefits of remote sensing resources as well as users' satisfaction of remote
sensing products and service.

The control system of magnetic bearing is a complex system. A digital controller is suitable for implementation of advanced control algorithms and easy to adjust control parameters. First, we analyze the principle of magnetic bearing, then by using xPC Target in MATLAB environment, we construct rapid prototyping of magnetic bearing digital control, this help us to solve the problem of simulation and realization. The methods can be used as guidelines for other real-time control system designers.

SAFER is a new computer architecture. Analytically redundant and dynamic upgradeability are two key concepts of SAFER. Applying the idea of SAFER to develop a new automatic test system can improve the reliability of the new system and the acceptability by users.

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Journal of Applied Remote SensingJournal of Astronomical Telescopes Instruments and SystemsJournal of Biomedical OpticsJournal of Electronic ImagingJournal of Medical ImagingJournal of Micro/Nanolithography, MEMS, and MOEMSJournal of NanophotonicsJournal of Photonics for EnergyNeurophotonicsOptical EngineeringSPIE Reviews